stormkitty | 4c05eccdf631718494acad0f088c54be2d1c13ec3e42e6ce21783a83fd3561b4

Analysis

max time kernel
154s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
12-08-2022 06:02

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General

Target

4736-137-0x0000000000400000-0x0000000000421000-memory.exe
Size

132KB
MD5

750aaf92bc7e94e6e32005c92532b1cc
SHA1

94f5051471090e7873eb40f874b0fe25066a3ba3
SHA256

4c05eccdf631718494acad0f088c54be2d1c13ec3e42e6ce21783a83fd3561b4
SHA512

3aa36d3bba46ab02f762b39e707674278aab4bc60c3089f230b7afeabd3b8755d73fbce5e6d371258206d0f924805c43bffaed521b5deecc2a20b3e84486017b

Score

10^/10

stormkitty collection stealer

Malware Config

Signatures

StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/3556-133-0x0000000000190000-0x00000000001AA000-memory.dmp	family_stormkitty

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
14	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3032 set thread context of 3556	3032	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	83

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AppLaunch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AppLaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3556	AppLaunch.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3032	4736-137-0x0000000000400000-0x0000000000421000-memory.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 3556	3032	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	83
PID 3032 wrote to memory of 3556	3032	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	83
PID 3032 wrote to memory of 3556	3032	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	83
PID 3032 wrote to memory of 3556	3032	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	83
PID 3032 wrote to memory of 3556	3032	4736-137-0x0000000000400000-0x0000000000421000-memory.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AppLaunch.exe

C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\4736-137-0x0000000000400000-0x0000000000421000-memory.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3032
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  2⤵
  - Accesses Microsoft Outlook profiles
  - Checks processor information in registry
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3556

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/3556-133-0x0000000000190000-0x00000000001AA000-memory.dmp

Filesize
104KB

Download
memory/3556-134-0x0000000004B00000-0x0000000004B66000-memory.dmp

Filesize
408KB

Download
memory/3556-135-0x00000000053D0000-0x000000000546C000-memory.dmp

Filesize
624KB

Download